YE Fei, LIU Shuzheng. EFFECTS OF WHOLE BODY IRRADIATION WITH X—RAYS ON CELL CYCLE PROGRESSION OF SPLENOCYTES IN MICE[J]. Journal of Radiation Research and Radiation Processing, 1999,17(2):111-114.
YE Fei, LIU Shuzheng. EFFECTS OF WHOLE BODY IRRADIATION WITH X—RAYS ON CELL CYCLE PROGRESSION OF SPLENOCYTES IN MICE[J]. Journal of Radiation Research and Radiation Processing, 1999,17(2):111-114.DOI:
The effect of whole body irradiation (WBI) with various doses on cell cycle progression of splenocytes in mice was investigated using flow cytometry. The results showed that DNA synthesis was stimulated within 12~72h after 75mGy irradiation, reaching the level of sham—irradiated group on day 7. Meanwhile,after WBI with 2.0Gy X —rays DNA synthesis was suppressed with significant G,2, block beginning from 8h, and retruned the level of sham—irradiated group on day 7.The study of dose—effect relationship showed that DNA synthesis was enhanced 24h after 50 and 75 mGy X—rays, and G,1, block occured after WBI with 100 and 200mGy, but DNA synthesis was suppressed with G2 block and cell division delay 24h after WBI with 0.5~4. 0Gy.
关键词
全身照射脾细胞细胞周期G1阻滞G2阻滞
Keywords
Whole body irradiationSplenocytesCell cycleG1 blockG2 block